Added more property help docs

app/private/docs/property/spell.md

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+# Spells
+
+Spells work similarly to [actions](/docs/property/action). They appear on the spells tab and can be cast with or without using up spell slots.
+
+---
+
+### Always prepared
+
+A spell that is always prepared does not count towards the spell list's maximum prepared spells and is always active and ready to cast.
+
+### Prepared
+
+A prepared spell is ready to cast and counts against a spell list's maximum prepared spells.
+
+### Cast without spell slots
+
+When set, this spell can be cast without consuming spell slots. It will however consume its own uses and resources.
+
+### School
+
+What school the spell belongs to.
+
+### Casting time
+
+How long the spell takes to Cast
+
+### Range
+
+The range of the spell
+
+### Duration
+
+How long the spell lasts
+
+### Components
+
+Whether the spell requires verbal, somatic, or material components and whether the spell is a ritual or requires concentration.
+
+### Target
+
+Who this spell should apply to. The properties under the spell will be applied to the targets.
+
+- **Self** The spell will apply its properties to the creature casting the spell
+- **Single Target** The spell will apply its properties without a target (for now)
+- **Multiple Targets** The spell will apply its properties without a target (for now)
+
+### Attack roll
+
+A [computed field](/docs/computed-fields) which calculates the spell attack roll modifier. If this field is empty, no attack roll will be made. Use 0 to make an attack roll without a modifier. To use the spell list's attack roll bonus use `#spellList.attackRollBonus`.
+
+The following variables may be added to the action scope when attack rolls are made:
+
+  - `$attackDiceRoll` The value of the d20 roll before any modifiers were applied.
+  - `$attackRoll` The total attack roll after modifiers.
+  - `$criticalHit` Set to `true` if the attack roll's d20 is a natural 20. If `criticalHitTarget` is set, the attack roll's d20 must instead be equal to or greater than `criticalHitTarget` for this to be set to `true`.
+  - `$criticalMiss` Set to `true` if the attack roll was not a critical hit and rolled a natural 1 on the d20 roll.
+  - `$attackHit` If the attack roll is higher than or equal to the target's AC or a critical hit this is set to `true`. Remains unset if there is no target for the attack unless the attack is a critical hit.
+  - `$attackMiss` If the attack roll is lower than the target's AC or a critical miss, this is set to `true`. Remains unset if there is no target for the attack unless the attack is a critical miss.
+
+### Summary
+
+A brief overview of what the spell does. This will show in the log when the spell is cast.
+
+Allows [inline calculations](/docs/inline-calculations).
+
+### Description
+
+A more detailed description of the spell. The description does not show in the log when the spell is cast.
+
+Allows [inline calculations](/docs/inline-calculations).
+
+### Resource
+
+A resource can be any attribute that has a variable name. If the resource attribute is less than the amount required, the spell can't be cast.
+
+If you want to reduce an attribute when casting the spell, but want the spell to be applied regardless of the value of that attribute, consider using an [Attribute Damage](/docs/property/attribute-damage) property as a child of the spell instead. Also use Attribute Damage when the amount to reduce the attribute is determined by a dice roll rather than a stable computed number.
+
+#### Resource attribute
+
+The variable name of the attribute that will be consumed when casting this spell.
+
+#### Resource quantity
+
+A [computed field](/docs/computed-fields) which determines how much of the attribute is required to apply this spell. This amount will be deducted from the attribute every time the spell is cast
+### Ammo
+
+Ammo represents items that are requied to cast the spell. If an item is not selected, or there is insufficient quantity of the selected item, the spell can't be appled.
+
+#### Ammo item
+
+Specify what tag an item must have to be considered valid ammo for this spell. Any item with this tag can be selected as ammo for this spell.
+
+#### Ammo quantity
+
+A [computed field](/docs/computed-fields) which determines how many of the selected items are required to cast this spell. The quantity is deducted from the total quantity of the item when this spell is applied.
+
+### Uses
+
+A [computed field](/docs/computed-fields) which determines how many times this spell can be used before it needs to be reset.
+
+### Uses used
+
+How many of this spell's uses have already been used. Should ideally be between 0 and the total uses available. This number is set to 0 when the spell has uses and its uses are reset.
+
+### Reset
+
+If set, the uses used field is set to 0 at the appropriate time.
+
+- **Long rest** Reset when the long rest button is pushed
+- **Short rest** Reset when either the long or short rest button is pushed
+
+
+### Tags
+
+See [Tags](/docs/tags)